Die Casting Mold Components Solution

High-Performance Core Inserts, Cavity Inserts, Ejector Systems & Slide Units

Complete Precision Components for High-Pressure Die Casting Molds

Senlan Precision provides integrated manufacturing solutions for high-pressure die casting mold components, supporting aluminum, zinc, and magnesium die casting systems.

We specialize in:

• Die casting mold core inserts

• Cavity inserts

• Ejector pins & sleeves

• Slide core systems

• Replaceable mold inserts

• Custom structural mold components

All parts are manufactured strictly according to customer drawings (OEM / Built-to-Print), ensuring dimensional stability, long service life, and reliable performance under high thermal and mechanical stress.

Why Precision Matters in Die Casting Molds

Die casting molds operate under:

• High injection pressure

• Repeated thermal shock

• Molten metal erosion

• Rapid production cycles

Component accuracy directly affects:

• Casting dimensional consistency

• Flash control

• Mold life

• Downtime frequency

• Maintenance cost

Our focus is not just machining — it is long-term mold stability.

Core Product Systems

1️⃣ Die Casting Mold Core Inserts

Core inserts form internal geometries and critical structural features.

Key Requirements

• High hot strength retention

• Thermal fatigue resistance

• Dimensional stability after heat treatment

• Anti-soldering performance

Materials

• H13 / 1.2344

• SKD61

• 8407

• DAC

Hardness Range

44–52 HRC (application dependent)

Machining Focus

• Concentricity control

• Flatness & perpendicularity

• Post-heat-treatment precision grinding

• Nitriding optional

Used in:

• Structural castings

• Electronic heat sinks

2️⃣ Cavity Inserts for Die Casting Molds

Cavity inserts define external geometry and surface quality.

Engineering Considerations

• Thermal expansion compatibility

• Cooling channel coordination

• Anti-erosion surface treatment

• Replaceable modular design

Surface finishing options:

• Precision grinding

• Fine polishing

• Nitriding

• PVD coatings (upon request)

3️⃣ Ejector Pins & Ejector Sleeves

Ejector systems must operate reliably under high casting pressure.

Critical Control Points

• Axial alignment

• Wear resistance

• Smooth sliding performance

• Heat resistance

Available in:

• Hardened H13

• SKD61

• Tool steel variants

Precision tolerance up to ±0.005–0.01 mm.

Used for:

• Aluminum die casting

• Zinc die casting

• Multi-cavity molds

4️⃣ Slide Core Systems & Movable Inserts

Slide units are essential for forming undercuts and complex structures.

Technical Requirements

• Accurate sliding fit

• Stable guiding system

• Wear-resistant sliding surfaces

• Heat-resistant structure

Components include:

• Slide core inserts

• Angle pins

• Wear plates

• Guide rails

• Latch systems

We manufacture precision components that integrate seamlessly into slide assemblies.

Manufacturing Capabilities

Our machining environment includes:

• High-precision CNC machining centers

• EDM (sinker & wire)

• OD & ID grinding

• Surface grinding

• Deep hole drilling

• Precision polishing

Inspection equipment:

• CMM

• Hardness tester

• Height gauge

• Surface roughness tester

All components undergo full-dimensional verification before shipment.

Engineering Strength

We support:

• Multi-cavity die casting molds

• Large structural cast molds

• Replaceable modular insert systems

• High-output production tooling

Our engineering team evaluates:

• Material selection

• Heat treatment stability

• Machining sequence

• Distortion control

• Surface treatment optimization

We focus on performance — not just drawing compliance.

Industries We Serve

• Industrial equipment manufacturing

• Electronic housing casting

• LED & heat sink production

• Structural aluminum casting

• High-volume zinc casting

Why Overseas Die Casting Mold Makers Choose Us

✔ Precision machining capability
✔ Stable heat treatment control
✔ Strong experience in H13 processing
✔ OEM / Built-to-Print flexibility
✔ Small batch & serial production support
✔ Reliable export packaging & documentation

Related Mold Component Capabilities

In addition to die casting mold components, we also manufacture:

• Injection mold core pins

• Mold cavity inserts

• Thread cores

• Hot runner components

• Precision stamping punch pins

Our Production Workflow

1️⃣ Drawing Review & Engineering Evaluation
2️⃣ Material Confirmation
3️⃣ CNC Rough Machining
4️⃣ Heat Treatment
5️⃣ Precision Finishing & Grinding
6️⃣ Surface Treatment
7️⃣ Full Inspection
8️⃣ Protective Packaging & Export

Lead time: typically 2–4 weeks, depending on complexity.

Request a Technical Discussion

If you are a:

• Die casting mold manufacturer

• Tooling integrator

• Automotive casting supplier

• Mold engineering manager

Please share your drawings and technical requirements.

Our engineering team will provide a detailed manufacturing evaluation and quotation within 24 hours.